Expansion of Lucile Packard Children’s Hospital with DYWIDAG Systems

Lucile Packard Children’s Hospital (LPCH) is one of the USA’s most prominent children’s hospitals. It is part of the Stanford University system, located adjacent to the university campus in Palo Alto, California. LPCH was founded in 1991 after a $40 million donation from David and Lucile Packard.

The $3-billion modernization project at Stanford University Medical Center includes a new hospital, the modernization of the original Palo Alto Hospital and new laboratories for the School of Medicine as well as an expansion of LPCH. The $3-billion modernization project at Stanford University Medical Center includes a new hospital, the modernization of the original Palo Alto Hospital and new laboratories for the School of Medicine as well as an expansion of LPCH.

Within the scope of the project, both new and existing facilities will be designed to comply with the seismic safety design requirements of the State of California.

Groundbreaking for LPCH took place in 2012, and construction is scheduled to be completed in 2016. The geotechnical subcontractor Malcolm Drilling built a temporary retaining wall around the existing hospital facilities and adjacent roads.

To tie back the wall, DSI USA supplied 282 temporary DYWIDAG Strand Anchors with 4 to 7 strands in lengths of up to 22m (72ft).

In addition, 230 temporary DYWIDAG THREADBAR Anchors in diameters of 32, 36, 46 and 66mm were required to stabilize the retaining wall. The DYWIDAG THREADBAR Anchors with ultimate tensile strengths of 1,034MPa (150ksi) were 30m long on average.

In addition, DSI USA also supplied the stressing equipment needed for post-tensioning the tendons as well as the coiling equipment to be used on the jobsite. The retaining wall was successfully completed in 2013.

General Contractor

DPR Construction, USA

Subcontractor

Malcolm Drilling Company, Inc., USA

Architect

Hammel, Green and Abrahamson, Inc., USA

Engineering

Degenkolb Engineers, USA


DSI Unit

DYWIDAG-Systems International USA, Inc., BU Geotechnics, USA

DSI Scope

Production, supply

DSI Products

282 temporary DYWIDAG Strand Anchors with 4 to 7 strands, 230 temporary DYWIDAG THREADBAR® Anchors, stressing and coiling equipment

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